Can I Run Gemma 4 on AMD Radeon RX 7900 XT?

Autor: Jakub Rusinowski · Ostatnia aktualizacja: 12 lipca 2026

Yes, comfortably — you'll have ~4.3 GB of headroom running Gemma 4 26B-A4B at Q4_K_M (15.6975 GB, ~102 tok/s (est.)) with room for up to 16K context.

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or compare on Vast.ai from $0.35/hr (typical low · varies)

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AMD Radeon RX 7900 XT 20GB
20 GB VRAM · 315 W board power
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AMD Radeon RX 7900 XT Specs

VRAM20 GB
Memory Bandwidth800 GB/s

Gemma 4 26B-A4B on the AMD Radeon RX 7900 XT: VRAM by quantization

QuantVRAM neededFits 20 GB?Max context
F1653.7 GB✗ No
Q8_029.3 GB✗ No
Q6_K23 GB✗ No
Q5_K_M20.1 GB✗ No
Q4_K_M17.4 GB✓ Yes16K
Q3_K_M12.7 GB✓ Yes32K
Q2_K10.2 GB✓ Yes32K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 20 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Gemma 4 Sizes That Fit the AMD Radeon RX 7900 XT

Gemma 4 26B-A4BQ4_K_M · 15.6975 GB · ~102 tok/s (est.)
Gemma 4 12B (Unified)Q4_K_M · 7.245 GB · ~54 tok/s (est.)
Gemma 4 E4BQ4 (QAT) · 4.5 GB · ~75 tok/s (est.)
Gemma 4 E2BQ4 (QAT) · 2.86875 GB · ~100 tok/s (est.)
Buy vs. rent Gemma 4
Buy the GPU
~$899
AMD Radeon RX 7900 XT · MSRP
Rent by the hour
from $0.34/hr
RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$899) beats renting at $0.34/hr after about 3.7 years.

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RunPod $0.34/hr
Rent on RunPod →
Vast.ai $0.35/hr · typical low · varies
Rent on Vast.ai →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Is the AMD Radeon RX 7900 XT enough to run Gemma 4 locally?

Yes, comfortably — you'll have ~4.3 GB of headroom running Gemma 4 26B-A4B at Q4_K_M (15.6975 GB, ~102 tok/s (est.)) with room for up to 16K context.

What's the best Gemma 4 size for the AMD Radeon RX 7900 XT?

Gemma 4 26B-A4B at Q4_K_M quantization (15.6975 GB), estimated ~102 tokens/sec, up to 16K context.

Every Gemma 4 size on the AMD Radeon RX 7900 XT

SizeVRAMVerdictSpeed
Gemma 4 31B18.7 GBRuns at Q3_K_M
Gemma 4 26B-A4B15.7 GBRuns~102 tok/s
Gemma 4 12B (Unified)7.2 GBRuns~54 tok/s
Gemma 4 E4B4.5 GBRuns~75 tok/s
Gemma 4 E2B2.9 GBRuns~100 tok/s

Gemma 4 on Other GPUs

Popular Models on the AMD Radeon RX 7900 XT

VRAM Tier

Troubleshooting

Buying Guide

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